Not able to add new Record in form

Not able to add new Record in form

Not able to add new Record in form

I am using Access 2013
I have a form for employees that contain name, badge #, email, rank, division, unit, extension, voice mail, cell #, auth code, classification. I have it linked to an external excel document where I keep their cell phone numbers.
I am not able to add new record within the form.
I am able to add a new record within the table though.
I believe it could be a join issue or a relationship issue?
I have attached a screen shot of the relationships.